{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "arguments": ["Combination.Drug", "Treatment.Disorder", "Subject.Age", "Treatment.Drug", "Treatment.Time_elapsed", "Effect", "Treatment.Dosage", "Treatment.Freq", "Treatment.Route", "Subject.Race", "Subject.Gender", "Treatment.Duration", "Subject.Population"]}], "input": "A study following large patient groups on theophylline and a combination of theophylline and steroids might clarify the risk of ulcer formation in patients being treated with these medications for asthma."}
{"adverse event": [{"Combination.Drug": ["theophylline", "steroids"], "Treatment.Disorder": "asthma", "Subject.Age": "NAN", "Treatment.Drug": ["theophylline", "steroids"], "Treatment.Time_elapsed": "NAN", "Effect": "ulcer", "Treatment.Dosage": "NAN", "Treatment.Freq": "NAN", "Treatment.Route": "NAN", "Subject.Race": "NAN", "Subject.Gender": "NAN", "Treatment.Duration": "NAN", "Subject.Population": "NAN"}]}